Grapevine tree
A grapevine tree is a tree (usually an elm ) that serves as a climbing aid for grapevines in a vineyard. The elm is already mentioned by Virgil as a climbing aid for the grapevine in the second book, Work of the Winegrowers of his Georgica / Vom Landbau .
In the Middle Ages the grapevine tree is called perantboum (to beran = to wear) or beriboum and is mentioned in the Codex Abrogans as uuinrepun paum . Since the vines grow up the tree and then bear grapes, it seems as if the tree is bearing berries. Vineyards were laid out in the 8th and 9th centuries in Lombardy, Alsace and on the island of Reichenau .
A striking example was used to designate the border point between the county of Baden and the Obervogtei Neuamt . The map by JK Gyger from 1667 explicitly mentions the “ march im Seegäßlin by dem winbirbaum ” located south of the city of Kaiserstuhl as a border marker. At this point, the municipal boundaries of Fisibach , Kaiserstuhl and Weiach meet today .